How fast must a 2500-kg elephant move to have the same kinetic energy as a 67.0-kg sprinter running at 15.0 m/s

A controlled procedure that tests the effect of one variable on another is known as experiment.

An experiment is a set of actions and observations, performed in the context of solving a particular problem or question, to support or falsify a hypothesis or research concerning phenomena.

An experiment generally tests how one variable is affected by another.

Thus, a controlled procedure that tests the effect of one variable on another is known as experiment.

The correct answer is option B. "experiment"

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Answer:

The experiment.

A set of coordinates on a map grid are called coordinate grid or grid squares.

The quadrants in which ordered pairings, or coordinates, are established typically have two or more intersecting lines. Coordinates are also used in maps.

Eastings and Northings, two types of grid lines, are what make up the grid squares you see on maps. Both Easting and Northing grid lines are numbered from west to east and from south to north, respectively. The vertical lines that separate the map's west and east halves are known as eastings.

GPS coordinates, which are frequently stated in alphanumeric characters, can be used to uniquely identify a specific geographic place on the planet. In this context, coordinates refer to the points where a grid system intersects. Typically, GPS coordinates are written as a combination of latitude and longitude.

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Answer:

plz follow me

Explanation:

ougffgegehhehe

Explanation:

The tension between cars 2 and 3 accelerates cars 3 through 17. That is a total of 15 cars.F = M*a, with M = 15*37,000 = 555*10^3 kga = 0.7 m/s^2Solve for F, in Newtons

Battery-powered clocks and Washing machines are objects that transform chemical energy into mechanical energy.

Chemical energy is a type of energy that is stored in the bonds of a chemical. It is converted into thermal energy when people burn wood or burn gasoline in the engine of a car. Mechanical energy is a type of energy that is stored in objects by tension. Compressed springs and stretched bands are examples of mechanical energy.

Mechanical energy i.e. kinetic energy or potential energy is the energy that is present in an object in motion or the energy that is stored in objects due to their position. Mechanical energy is a type of renewable energy.

So we can conclude that options A and C are the correct answers.

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Answer:

B

Explanation:

The enzime's active site bindes to the substrate.... when an enzime binds to a substrate it forms a enzime-substrate complex

When an enzyme and a substrate interact at an active site, the products are bound irreversibly. Therefore, option B is correct.

Enzymes can be described as proteins that act as biological catalysts by accelerating reactions. The enzymes may act on the molecules called substrates, and the enzyme changes the substrates into different molecules known as products.

All metabolic processes require enzyme catalysis to occur at rates fast enough to sustain life. Metabolic pathways will depend upon enzymes to catalyze each step.

Enzymes catalyze more than 5,000 biochemical reaction types. Enzymes enhance reaction rates by lowering their activation energy. Some enzymes make their conversion of substrate to product occurs.

Enzymes are much larger than substrates, they can have 62 amino acid residues to over 2,500 residues in the animal fatty acid synthase. The catalytic site is located next to binding sites where residues are oriented to the substrates. The catalytic site and binding site compose the active site.

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For solving this problem,we have to apply Newton’s law of gravitation which defines the magnitude of the force between two objects.

Gravitational Force -

\(\:\:\:\:\:\:\:\sf \underline{\boxed{\sf{F=G\times \dfrac{ \: m_1 \: m_2}{r^2}}}}\)

Where:-

As per question, we are given -

Now that required values are given, so we can substitute the values into the formula and solve for Force of gravity:-

\( \:\:\:\:\:\:\:\longrightarrow \sf Force_{(gravity) }= 6.7\times 10^{-11} \times \dfrac{3.5\times 6.4\times 10^{23}}{(5.6\times 10^{10})^2}\\\)

\( \:\:\:\:\:\:\:\longrightarrow \sf Force_{(gravity) }=6.7\times 10^{-11} \times \dfrac{1400.46}{23172.08}\\\)

\( \:\:\:\:\:\:\:\longrightarrow \sf Force_{(gravity) }=6.7\times 10^{-11} \times 0.06\\\)

\( \:\:\:\:\:\:\:\longrightarrow \sf \underline{Force_{(gravity) } = 4.02\times 10^{-12}\:N}\\\)

Answer:

the air particles dont move as fast in the cold air as in warm, so it doesnt push as often and shrinks.

Explanation:

see above

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Since the air molecules in cold air travel more slowly than they do in warm air, the air pushes less frequently and contracts.

Refraction is the process by which a wave changes direction while transitioning through one medium to another in physics. As an illustration, waves move much faster in the open ocean than in the shallow.

A tsunami will swing until it is moving perpendicular to the coastline if it is approaching a beach at an angle because the wave's outermost layer goes quicker than its inner portion. In warm air compared to cold, sound waves move more quickly. A lake's surface cools at night, and any sound waves that ascend are bent down by the warmer upper levels of the atmosphere. Because of their varying speeds, the electromagnetic waves which make up light are distorted when they move through a clear substance.

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A VfL (Vertical Field LED) backlighting system is commonly used in LCD (Liquid Crystal Display) televisions.

LCD TVs rely on a backlight to illuminate the liquid crystal layer, which controls the passage of light to create the visual image. The VfL technology is a specific type of LED backlighting arrangement used in certain LCD TV models. In a VfL backlighting system, the LEDs (Light-Emitting Diodes) are positioned vertically along the edges of the LCD panel.

The light emitted by these LEDs is directed across the panel using light guides or optical films, illuminating the liquid crystal layer uniformly. One advantage of VfL backlighting is its ability to provide consistent illumination across the LCD panel, reducing any potential inconsistencies in brightness or color uniformity. The vertical orientation of the LEDs allows for more precise control over light distribution, improving overall image quality.

Additionally, VfL backlighting offers potential advantages in terms of power efficiency. By selectively dimming or turning off specific zones of LEDs, local dimming techniques can be employed to enhance contrast and black levels, resulting in improved picture quality while conserving energy. It's important to note that VfL backlighting is just one of several backlighting technologies available for LCD TVs.

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Let x represent the original length of the rod.

From the information given,

angular acceleration, α1 = 1.8 rad/s^2

Since the rod is divided into A and B, then

A + B = x

A is twice the length of B. It means that

A = 2B

Thus,

2B + B = x

2B = x

B = x/3

A = x - x/3

A = 2x/3

Let M be the initial mass of the rod

Mass of A = 2M/3

Mass of B = M/3

The formula for calculating the moment of inertia of a thin rod with length x whose axis passes through the center and it is perpendicular to its length is

I = Mx^2/12

If the axis passes through one end,

I = Mx^2/3

Calculating moment about axis 1,

I1 = 0 + 1/3 * M/3 * (x/3)^2

I1 = Mx^2/81

Calculating moment about axis 2,

I2 = 1/12 * 2M/3 * (2x/3)^2 + 0

I2 = 8Mx^2/324

In both cases, the external applied torques are equal. This,

I1α1 = I2α2

α2 = I1α1/I2

By substituting the given values,

α2 = (Mx^2/81 * 1.8)/(8Mx^2/324)

α2 = Mx^2/81 * 1.8 * 324/8Mx^2

α2 = 0.9 rad/s^2

the angular acceleration = 0.9 rad/s^2

The net work done on the block over the given distance is 39.4d (joules)

The net work done on the block over the given distance is calculated by applying the following equation as shown below;

W(net) = F(net) x d

where;

F(net) = F - μmgcosθ

where;

F(net) = 50 N - (0.25 x 5 x 9.8 x cos30)N

F(net) = 50 N - 10.6 N

F(net) = 39.4 N

The net work done on the block over the given distance is calculated as;

W = 39.4 N x d

where;

W = 39.4d (joules)

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wavelenght = λ = 0.10 m

Frequency = f = 60 Hz

v= speed

Apply:

v = f x λ

Replacing:

v= 0.10 x 60 = 6 m/s

Answer:   the acceleration of the masses is given by = 0, which means the angular acceleration of the pulley is zero. This implies that the masses m and 2m move with constant velocity,  they are in equilibrium.

Answer:

d,.......just did it in a.pex

Answer:

D. T = 1 / f

Explanation:

A.P.E.X.

The weight of the aluminum foil is 26.20 N

To find the weight of the aluminum foil when it is unrolled, we need to find its volume.

The volume V = lwt where

So, V = lwt

= 22 m × 0.30 m × 0.15 × 10⁻³ m

= 0.99 × 10⁻³ m³.

So, its weight W = ρV where

So, W = ρV

W = 26460 N/m³ × 0.99 × 10⁻³ m³

W = 26195.4 × 10⁻³ N

W = 26.1954 N

W ≅ 26.20 N

So, the weight of the aluminum foil is 26.20 N

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Answer:

the powar produced is 0.7 watts

Let the circumference of the circle be 10L.

A moves at 10L/2 = 5L per hour

B moves at 10L/5 = 2L per hour

Therefore it will take them 10L/(5L+2L) = 10/7 hours to meet

The statement that the sailboat ends up seven miles to the west is true because that it depicts displacement, a vector quantity.

The vector quantity known as displacement stands for distance with a directional component. As a result, displacement is defined as a distance and a direction.

Contrarily, distance is the amount of space between two locations, typically those that are geographical, and is typically (though not always) measured along a straight line. It has no direction because it is a scalar quantity.

The primary distinction between the two terms is as follows: A scalar quantity known as distance measures "how much ground an object has traversed" while moving.

The answer to this query places a sailboat 7 miles west of a pier. This indicates displacement because the magnitude is 7 and the direction is west of the pier.

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Answer:

Weight of 21 kg is misleading as kg is a unit of mass.

F = m g = 21 kg * 9.8 m/s^2 = 206 Newton's

P(pressure) = Force / Area        definition of pressure

1 cm^2 = 1.0E-4 m^2

200 cm^2 = .02 m^2

P = 206 N / .02 m^2 = 10,300 N/m^2 = 10,300 Pascals

The relationship between the length of the circle and its radius allows to find the result for the revolutions turned when the distance decreases  8.60m is:

           Angle = 17.8 rev

The length of a circle is given by the expression.

         L = 2π r

Where L is the length of the circle and r is the radius of the circle.

They indicate the radius of the drum is r = 7.71 cm = 7.71 10⁻² m, let's find the length of the circle.

         Lo = 2 π 7.71 10⁻²

         Lo = 0.4844 m

Let's find the angle that the drum has rotated, using a direct proportional rule. If rotate an angle of 2π radians when you descend 0.4844 m, what angle you rotate when you descend 8.60 m.

          #_ angles =  \(8.6 m \ \frac{2\pi \ rev} { 0.4844 m}\)  

          #_angle = 111.55 radians

Let's reduce to revolutions.

         # _angles = 111.55 radians ( \(\frac{1 rev }{2\pi rad}\) )

         #_angulo = 17.8 rev

In conclusion, using the relationship between the length of the circle and its radius, we can find the result for the revolutions turned when the distance decreases is:

           Angle = 17.8 rev

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Yes the given statement that reinforcement is not necessary for learning to but that it eventually affects demonstrative behaviour is correct.

Most of the animals including humans are taught by others a basic set of guidelines that they should follow in certain situations that might happen to produce optimal solutions for a problem or the given situation. Now this method of Pre guidelines by others is known as reinforcement in learning.

Demonstrative behaviour means following certain actions to grab the attention of others or showing of yourself.

Reinforcement in learning is very important for fast growth of any human being.

For example if members of a tribe were given a task of measuring the speed of light it will take them centuries before the figure out the proper method for measuring the speed of light it happens because never thought about the basic guidelines that we know about light and its properties.

If they were to do this on their own it will take them years and years before the learn to do so.

From childhood we are taught what to do when an earthquake happens now if it were ever to happen we will follow the same guidelines to help and create the optimal solution for the problem.

But if someone who has never thought about these guidelines were to come across an earthquake he might come to the same conclusion that he should hide under the bench and look for an open ground because to him it will see him as the optimal solution.

Therefore, Yes the given statement that reinforcement is not necessary for learning to but that it eventually affects demonstrative behaviour is correct.

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The weight of the 100 kg object on the surface of the planet is approximately 8.9 × 10¹² Newtons.

To calculate the weight of a 100 kg object on the surface of a planet, we need to use the formula for gravitational force:

F = (G * M * m) / r²

Where:

F is the gravitational force (weight)

G is the gravitational constant (approximately 6.67430 × 10⁻¹¹ N m²/kg²)

M is the mass of the planet (4.8 × 10²⁴ kg)

m is the mass of the object (100 kg)

r is the radius of the planet (diameter / 2)

Given that the diameter of the planet is 12,000 km, we can find the radius by dividing it by 2:

r = 12,000 km / 2 = 6,000 km = 6,000,000 m

Now, we can substitute the values into the formula:

F = (6.67430 × 10⁻¹¹ N m²/kg² * 4.8 × 10²⁴ kg * 100 kg) / (6,000,000 m)²

Simplifying the expression:

F = (6.67430 × 10⁻¹¹ N m²/kg² * 4.8 × 10²⁶ kg) / 36,000,000,000 m²

F ≈ 8.9 × 10¹² N

Therefore, the weight of the 100 kg object on the surface of the planet is approximately 8.9 × 10¹² Newtons.

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We know that

• The initial velocity is 276.62 m/s.

• The angle of launch is 44.78.

The formula to find the horizontal distance reached is

Using the given magnitudes, and g = 9.8 m/s^2, we have

Answer:

\(c.) \: systematic \: error \\ \\ = > it \: is \: the \: error \: caused \: \\ \\ due \: to \: the \: procedure \\ \\ \: and \: used \: apparatuses \\ \\ \huge\mathfrak\red{Hope \: it \: helps}\)

Blocks of colored instructions are connected to create programs. Scripts are the name for these collection of blocks. They direct on-screen characters in what to do.

Motion can be characterized as a shift in an object's location with regard to time. Motion can be heard in a variety of sounds, such a book sliding off a table, water running from a faucet, rattling windows, etc. There is motion even in the air we breathe! The universe is a moving thing.

Delete your calendars, task lists, and project management software. Motion uses AI to schedule your day and the days of your team! Your projects, tasks, and meetings are required.

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The mass of the child is 33.26 kg.

Mass can be defined the quantity of matter a body contained.

The S.I unit of mass is kilogram (kg)

To calculate the mass of the  child, we use the formula below.

Formula:

Where:

Make m the subject of the equation

From the question,

Given:

Substitute these values into equation 2

Hence, the mass of the child is 33.26 kg.

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Answer:  1. The function of a lightning rod is to protect buildings, structures, and people from lightning strikes by providing a path of least resistance for the electrical current to follow, directing it safely into the ground instead of through the structure or people.

2. Charge build-up is reduced on airplanes through various methods, such as using conductive materials in the airplane's structure, applying anti-static coatings on the airplane's surface, and installing static discharge wicks or similar devices on the airplane's trailing edges, which provide a way for any accumulated charge to safely dissipate into the air.

3. A ground strap is a necessary safety feature when transferring fuel because it provides an electrical connection between the fuel container and the receiving container, allowing any static charge to safely dissipate into the ground. Without a ground strap, the static charge could build up and potentially ignite the fuel.

4. Three different methods for reducing charge build-up in clothes dryers are: (1) using dryer sheets or fabric softeners, which can help neutralize static charges on the clothes, (2) adding a damp cloth to the dryer, which can help dissipate static charges, and (3) using metal dryer balls, which can physically separate clothes and prevent them from rubbing against each other and creating static charges.

5. Four different methods for reducing charge build-up in a computer room with a carpet are: (1) using conductive flooring or carpet tiles that can help dissipate static charges, (2) using anti-static mats or wrist straps for personnel who work in the room, (3) using air ionizers or humidifiers, which can help neutralize static charges in the air, and (4) grounding all equipment and devices in the room to prevent the buildup of static charges.

Explanation:

I hope this helps!

Vehicles need to be serviced for several reasons such as preventing costly repairs and improving fuel economy.

First, regular maintenance can help to prevent costly repairs down the road. Second, maintenance can help to improve fuel economy and emissions. Third, maintenance can help to keep your vehicle safe and reliable.

The servicing requirements for petrol/diesel and electric vehicles differ in a number of ways. Petrol/diesel vehicles require oil changes more frequently than electric vehicles. This is because petrol/diesel engines use oil to lubricate the moving parts, while electric motors do not. Petrol/diesel vehicles also require tune-ups more frequently than electric vehicles.

This is because petrol/diesel engines have more moving parts that need to be synchronized, while electric motors have fewer moving parts.

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